[PATCH v5 13/25] soundwire: amd: assert msg_lock is held in amd_sdw_read_ping_status()

[Vijendar Mukunda]

amd_sdw_read_ping_status() is always called from sdw_show_ping_status()
which holds bus->msg_lock. Add lockdep_assert_held() to document this
locking requirement and catch any future callers that omit the lock.

Signed-off-by: Vijendar Mukunda <Vijendar.Mukunda@xxxxxxx>
---
 drivers/soundwire/amd_manager.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/soundwire/amd_manager.c b/drivers/soundwire/amd_manager.c
index ebd3787ee6c8..767bc5510dfe 100644
--- a/drivers/soundwire/amd_manager.c
+++ b/drivers/soundwire/amd_manager.c
@@ -571,6 +571,7 @@ static u32 amd_sdw_read_ping_status(struct sdw_bus *bus)
 	u64 response;
 	u32 slave_stat;
 
+	lockdep_assert_held(&bus->msg_lock);
 	if (amd_sdw_send_cmd_get_resp(amd_manager, 0, 0, &response)) {
 		dev_err_ratelimited(amd_manager->dev, "SDW%x ping status timeout\n",
 				    amd_manager->instance);
-- 
2.53.0